It's seldom that the fate of a shipful of men literally hangs by a thread--but it's also seldom that a device, every part of which has been thoroughly tested, won't work....
Nelson and Ramos sped on toward Mars in their tiny plastic-bubble spacecraft. They were on the alert it didn't pay to take anything for granted in the Big Vacuum The way between the worlds was mostly empty space except for the outlaws of the void who drifted, patiently and vengefully waiting for a victim, then struck! Nelsen and Ramos tensed blips on the radar screen! Maybe meteors.
A MYSTERIOUS "FALL-OUT" PARALYZES CIVILIZATION! Mayfield was the typical college town. Nothing too unusual ever happened there until a mysterious comet was suddenly observed by the scientists on College Hill. The copper-yellow glow of the comet seemed to have brought the whole world to a grinding halt.
When a super-robot discovers how to build his own superbombs, it becomes obvious that Earth is by no means the safest place for him to be. Dr. Fitzhugh, his designer, and Leda Crannon, a child psychologist acting as Snookums' nursemaid, agree to set up Operation Brainchild, a plan to transport the robot to a far distant planet. Mike the Angel Gabriel, Power Design has devised the power plant that is to propel the space ship Branchell to its secret destination, complete with its unusual cargo.
The last enemy was the toughest of all--and conquering him was in itself almost as dangerous as not conquering. For a strange pattern of beliefs can make assassination an honorable profession!